Dough-forming machine.



'0; P. DIBTZ. DOUGH FORMING MACHINE.

APPLICATION FILED SEPT. 19, 1904.

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PATEN-TED DEC. 13, 1904.

No. 777,835. PATENTED DEC. 18, 1904. O. P. DIBTZ. DOUGH FORMING MACHINE.

APPLICATION FILED SEPT. 19, I904.

N0 MODEL. 6SHEETS-SHEET 2.

No. 777,335. PATENTED DBC.13, 1904.

G. F. DIETZ. DOUGH FORMING MACHINE.

APPLIOATION'IILED SEPT. 19. 1904.

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' PATENTED DEC. 13, 1904. 0. F. DIETZ. DOUGH FORMING MACHINE. APPLICATION FILED SEPT.19, 1904;. N0 MODEIi I 6 SHEETS-SHEET 4.

fizz e2 2 5 I -r' a, J M be No. 777,335. I PATENTED DEC. 13, 1904.-

OLF. DIETZ. DOUGH FORMING MACHINE.

APPLICATION FILED SEPT. 19, 1904. no MODEL. 6 guhnws-snnm 5.

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0. 1-". DIBTZJ DOUGH FORMING MACHINE.

APPLICATION rum: snr'r. 19, 1004.

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No. 777,835. H f

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SPEGIFICALION forming part of Letters Patent No. 777,335, dated December 13, 1904. Application filed September 19, 1904. Serial No. 225,038. (N0 model.)

To all whom it may concern.-

Be it known that I, (hunsrIAN F. DIE'IZ, a

' citizen of the United States, residing at ()hicage, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Dough-Forming Machines, of which the following is a specification.

My invention relates to an improved method of as Well as improved apparatus for form ing lumps of finished dough into loaves for baking.

The invention, so far as the method is con cerned, is in the nature of an enlargement of or improvement upon a method described in Letters Patent No. 766331, granted to me August 2, 1904:. My patented method, broadly and briefiystate d, consists in drawing the surface of a lump of finished dough toward one, more especially the under, side thereof, thereby stretching the skin portion and applying the surplus skin to said side and simultaneously with the stretching compacting the lump. One preferred means for carrying out this method, as shown in the patent named and also in Patent No.'766,432, granted to me on the same day for a dough-forming machine, is to rest the lump upon and subject it to the action of a pair of friction-rollers which rotate toward each other, thereby drawing the skin from two sides and depositing it in the under side, a scraper provided between the rollers operatingto prevent the passage of dough between them. In the machines illustrated in the patents the formed loaves are discharged by separating the rollers, thereby causing the loaves to drop between them. In a separate pending application for Letters Patent filed by me May 31, 1904, Serial No. 210,416, for a douglrt'orming machine I have shown and-described amethod subservient to the claims "of my first patent cited and also means for forminga loaf from a lump of dough by confining the lump and subjecting it at one,

. more'especiall y the under,side to reciprocating frictional drawing action against it without rotating the lump to stretch the skin portion, drawing-the same from two sides, depositing the surplus thereof in said under side, and compacting the lump. The machines illustrated in my said patents and pending application are adapted more especially for forming loaves ofthe square or oblong types by drawing the skin from two sides only to the under side. I have found that by subjecting a lump of dough to the action of friction-rollers, as described in the patent, and simultaneously therewith to reciprocating frictional drawing action in the general manner described in the pending application referred to to stretch and draw the skin approximately from all sides to the under side 1 can produce, therefrom loaves of the'well-known oblong, square, cylindrical, round, or other types, resulting when baked'in bread possessing in an enhanced degree the advantages of quality and appearance which characterize loaves of the square or oblong types formed by either of the methods above referred to when employed alone. I

My present object is to employ in cooperative practice for the production oi improved loaves the two methods defined.

It is further my object to provide a machine of simple and novel construction for carrying out my present improved method of forming 7 leaves.

In the accompanying drawings, which illustrate a machine embodying my present im-- provements.Figure 1 is an elevation of one side of the machincpFig. 2, an elevation of the op posite side of the machine with two of the shafts in section on lineQ in Fig. 5; Fig. 3,alongitudinal section taken on line 3 in Fig. 4; andviewed in the direction of the arrow; Fig. 4s, a plan view ofthe machine with parts broken away to expose details which would otherwise be hidden; Fig. 5, an enlarged broken section taken on line 5 in Figs. 2 and a; Fig. 6, an enlarged broken section taken on line (5 in Fig. 4.; Fig. 7, an enlarged broken section taken on line 7 in Fig. 2:, Fig. 8, an enlarged section: taken on line 8 inFig. t; Fig. 9, an enlarged section taken on line 9 in Fig. it: and Fig. 10, anew larged broken side elevation of the machine,

showing means i'or quickly starting and stop 9 ping reciprocation of the formingrollers.

A A are the side frames or checks of the machine held together by cross-extending bracket hers and tie-rods, indicator. The main -ellel companion forniir I ction surfaces. They are mtery shnf's D E, passing through onrneled in loo'iies on the cheeks'to have udinzii es Wcli as rotary movement rein,

thered upon the shafts D E are the "1*Wl1Q-9i8 a b, respectively The journalon the cheek A for the are on e crochet 0. which is also formed with stops c,

indicated in 6, to lioldthe Wormwiiecis against longitudinal movemen The Worm-Wheel 7) driven by n Worm-shaft d,

s. pinion. (Z, meshing with 5 driveon the shaft The worm-wheel w e Worm on a snait The shafts journeled in brackets on the cheelr A a extend in alinement, out out of contact v. 1 each ct On the shaft (1 is a loose sleeve or clutch niemherjl e pinion f ith a gesnwheel Bon the shaft .id also ose upon the shaft 0 is a. sleeve ntch member g, csr ring it pinion g, I: through an intermediate pinion r from 1 a 1 i on the shaft B, Feathered upon thee isft (2 between ti o clutch members g; is a sliding clutch member 71-, actuated by on i. /I on erocl==elieit 71', passing to the onpr i' the machine, where it carries so airmi. The arm It? is connected by a link it with (mersting-lever F, fnlcrurned at its lower end against he cheek A.

in operation the formi roller is driven constantly in the direction of the arrow in 4;. from the shaft 3 through the medium oi the gears B d", Worm-shaft IZ, Wormw eel r). tihen the lever-i is swung from its intermediuie position (shown in Fig. 52) toward the opposite end of the machine, the clutclrshifting mechanism described moves the clntch'menlher it into engagement with he clutch member 7'1 causing the forming roller D to he rotated from the sneftB in the oppo driven in the reverse direction by theshafi B through the medium of the gears g to reverse the roller 1), whereby it turns the same direction as the roller E to discharge leaves, as hereinafter described.

Confined between collars Z on the shafts l) E is ovided with )i'JQHlIig'Sillltiilg and the said shafts. The block 11;

block Z5, and. con quentl the rollers DEcorrespondmgly. i

ciprocetion the roller-shefts D E reciprocate through the worn eis o Z1, which sref cred thereto and escrihed, against longitudinal movern'en Extending betx Ben the rollers D E in the manner shown e scraper-plate 11% of the form in crosi -section indicated in Fi s. U and 8. illlfi screpenplete extends at its upper edge to a ferebly somewhat higher than the plane of the centers of the rollers and the ter rotate freely at opposite sides thereof. The scraper or scraper-piste G is the seme length as the rollers and is fastened. at its ends to pint-es or blocks fitting loosely over the shafts D E at the ends of the roll ers. of the rollers and their shafts the scraper moves With the rollers. The-object of the scraper is to prevent dough from being; drawn downward between the rollers as hereinefter described.

Extending parallel with the roilers in thehe c ear that in this re-- Thus in the longitudinal reciprocation non e hreclzet 6 and provided along position shown and fastened at its oppositeends to the checks of the machine is her H1, carrying a series of adjustable Walls or pertition-pieces 1. Each nertition-pieceis formed of a frame having it heed m with an opening through it to fit around the bar H and having a set-screw m for fastening the partitionpiece in adjusted position. The body portion of each partition-piece consists of the vertical end parts 2. n and bottom part it, which latter at its under edge is shaped to lit loosely over th tops of the rollers I) E and meet or nearly meet the top edge of the scraper G. Festened against opposite sides of each pa tition-friunc ere sheets of canvas or other sum able porous materiel p 2. The construction described presents it pocket 12 between the end parts '7' n of the frame and between the porous sides at opennt the top and adapted tr; contain dry iionr or other suitable nulverulent material. As illustrated in the d rmvings, the partition-pieces i sepsrete the space above the rollers l) E into three COIIIIJiLl'bHlGllhS g, as iliustrsted most plainly in Fig. 4:.

Journslcd in companion adjustable belttightcnh'ng' boxes K at the tops of thecheeks is e shaft carrying it rolier hi, and journaled in com mnion hcltc hteningjonrnei-hoxes hi at the feeding end of ti is a shaft curry- 1.' 5 Ci-'i')dil] is extends over the reilrr width curl rollers ll it,

rown, the said belt being of a mailing the length ol the Us the shafiit oi the roller hi is llfulcrnined on the said at the .c the liit'tClhElh-Wi'lGOl it is a ng arm r, carrying a ratchet-engaging and connected at its free end, by means oi a lint: r, pivotally with the opcrating-lever i shown in Fig. 2. i Movement of the lever i to bring about engagement between the clutch me to in tl 1e cction opposite to the roller the said lever to swing the are; 'r, 1 the paw? will engage the ratchet and ollcr it part of a revolution. This he roller hi advances the feed-belt heaps of dough into the conepartuumt:-; q, lii'sreina'ltcr described.

the center or? the machine beneath the roller ii is a roiler L, the shaft of which carries pulley L beyond the cheek A, belted, as indicated in ii 1, i and by dotted lines in Fig. 2, to a pulley on the counter -shaft U. dournaled in adjust Jle belt-tightening boxes if at the ends of the checks of the machine is the shaft of a roller if. A. discharge-belt L extends around the rollers L L, as shown moi-1t plainly in i ig. 3. Beneath the upper .tch oi the bolt if, between the rollers L L", s a platform L, over which the belt slides and which prevents yielding thereoi in the downward direction.

(in the upper edge of the cheeks A A in the positions sh wn are a pair of standards .v 21 iii a pair ol shur :1" standards t. The stand. itlTlS-KSIllfiiltltlf cross-rods and the standards tsnpport a crow-rod Adiustahiy fastened to these rods are parailel boards or partitions w in line with the partitionaieces ll. They are of the shape shown in side elevation in ll ig. 3'3 and terminate at their lower sides in a plane closely above the belt la. The partitions v; will prevent long loaves as they are discharged from the conuiartinents 17 from oi hing together at their ends in the eventthey' expand longitudinally when moved by the dis charge-bolt I The opera ion thus f r described is as follows; healed lumps oi' finished dough to be lorinoil into leaves preparatory to baking are placed upon the th Jfiit l in rows of three, so that in each moveiucntor the said feedbelt disarm-i i :eil tl i rec oi the lumps will be discharged from thrbelt and dropped into the compartmenu; I] to rest upon the platform formed by the roilcrs ll ill-El. The movement of the lever i which causes the lumps to be fed to the compartments, as (loser: ed, also, as before stated, causes the torn g-roller l) to rotate in thcdircction oppose to the roller E, where by both roilers at their upper sides move toward the scraper til. ".llio frictionsurfaces oi the toriningrcliers engage the slain portioru-w of" the heaps of dough and draw the Mil ibcrs 74 f to cause the roller l) same to the under sides of the iumps. The scraper prevents any of the dough from being drawn between the rollers. Consequently the surplus skin is deposited upward into themder sides of the lumps. The drawing of the skin portion from opposite sides (described) also has the ellect of compacting the lump. The efl'ect of this operation on the lumps in forming them into loaves is fully described in my aforesaid patents, and this subject need not be gone into in the present case. As hel'ore descri bed, the forming-rollers while rotating also reciprocate correspondingly, thereby causing the lumps of dough in the compartments to be pressed first in one direction and then in the other against the walls or partitions .1. The effect of this operation upon the ends of the lumps, as described in my aforesaid pending implication, is to cause ti shin portions of the said ends alternately to be drawn to the under sides of the lumps and deposited therein. A few rotations of the formil'ig-rollers and impacts of the lumps against the partition'picccs result in giving to the lumps the shape approximately of a sphere. The number of turns oi the rollers and impacts against the partitions will be governed by the operator according to the character of the dough. Wlren the operation is completed, the lever F swung to reverse the rotation of the roller i It), causing it by its reverse movement to discharge the formed loaves onto the belt If, by which they are carried to the discharge end of the machine. immediately that the formed loaves drop from the roller l) onto the belt if the operator may swing the lover back to feed three more iumps of dough to the compartments (1 and form them as described. .lfl' eh time a lump oi dough strikes one of the partition-walls (1 a little of the flour or the like contained in the receptacles 1) ports through the walls and prevents the dough from stickingthereto. Eiomc of thcilour or the like thus supplied also drops onto the rollers I) E, preventing the dough from sticking at the angles between the rollers and Walls. When the more or less spherical loaves are taken from the discharge'beltL they are caused to rest in pans or the lilre upon their sides, into which the surplus skin portions were deposited during the forming operation. After resting thus for awhile the top surfaces of the loaves sink more or less and the loaves enlarge in diameter, whereby when ready for the baking operation the loaiios are flat at their under sides, convex at their upper sides, and more or less perfectly round in horizontal cross-section. ll it is desired to form loaves of the square or rectangular types in horizontal cross-section, the lover I may be disconncctad from the disk (1 to stop reciprocation ol theforming-rollers. Thus only the rollers will operate upon the lumps of dough, causing them while being formed to elongate as far the urged by reversing rota- 'bed.

as Cescrl bed m m making r0 loyed,

213 be emp h mac und loaves, square Iindrical loaves,

AYES, or c 11 1 n e m f on my m h hown in r lows the under side thereof, thereby stretching the skin portion, applying the surplus skin to the said under side, and simultaneously with the stretching, compacting the lump.

3. The herein-described method of forming a cylindrical loaf from a lump of dough, which consists in drawing the skin portion of the lump from all sides toward the under side thereof without rotating the lump, thereby stretching the skin portion, applying the surplus skin to the said under side, and simultaneously with the stretching, com pactingthe lump into the shape approximately of a sphere, then subjecting the lump to a rolling action under pressure from opposite sides to elongate the leaf.

4. Theherein-described method of forming a cylindrical loaf from a lump of dough, which consists in drawing the skin portion of the lump from all sides toward the under side thereof without subjecting the lump to presi sure on its upper side, thereby stretching the skin portion, applying the surplus skin to the said under side, and simultaneously with the stretching, compacting the lump into the shape approximately of a sphere, then subjecting the lump to a rolling action under pressure from opposite sides to elongate the loaf.

In a machine for forming a loaf from a lump of ,dough, substantially as described, the combination of a pair of cooperating forming members presenting friction-surfaces forming a bearing for the lump, and-holding it against turning, means operating to move one of said members in the direction toward the other member and the under side of the lump to form the leaf, and means operating thereafter to rotate one of said members on its axis in the direction away from said other member to discharge the loaf. L

6. in a machine forforming a loaf from a lump of dough, substantially as described, the combination of a pair of cooperating formingrollers presenting friction-surfaces forming a bearing for the lump, and holding it against turning, means operating to turn one of said rollers in the direction toward the other roller and the under side of the lump to form the leaf, and means operating thereafter to reverse the rotation of one of said rollers to discharge the loafl 7. In a machine for forming a loaf from a lump of dough, substantially as described, the combination of a pair of cooperating rollers presenting friction-surfaces forminga bearing for the lump, and holding it against turning, means o 'ierating to rotate said rollers in. the direction toward one side of the lump, and means operating to move the said lump alternatel y in opposite directions longitudinally of the rollers, for the purpose set forth.

F4. in a machine for forming a loaf from a lump of dough, substantially as described, the

combination of a compartment, a pair of co- 5 operating correspondingly reciprocable rollers forming the base of the compartment, means operating to rotate said rollers in the direction toward one side of the lump, and mcansifor reciprocating said rollers, substan 7 tiall y as and for the purpose set forth.

9. In a machine for forming aloaf from a lump of dough, substantially described, the combination of a compartment, rollers presenting friction-surfaces forming the base of said compartment, means operating to rotate said rollers in the direction of one side of the lump, means operating to reciprocate the said rollers longitudinally, and means for revers ing the rotation of one of said rollers, substantially as and for the purpose set forth.

l0. Zln a mach inc for forming a loaf from a lump of dough, a compartment for the lump having porous powder-supplying walls, a platform having a friction-surface forming the 5 base of the compartment, and means for re ciprocating the platform or walls one with relation to the other, substantially as and for the purpose set forth.

11. The improved dough-forming machine 9 comprising, in combination, mechanism which forms a lump of dough into a loaf of approximatcly spherical shape by drawing the sur-- face portion to the under side thereby stretching the skin and compacting the leaf, and mechanism into which such leaf is passed and by which it is rolled bodily under pressure to elongate the leaf.

12-. The improved dough-forming machine comprising, in combination, mechanism which forms a lump of dough into a loaf of approximately spherical shape by drawing the surface portion to the under side thereby strctching the skin and compacting the leaf, and means operating to change the leaf from a 5 spherical to an elongated shape before it is discharged from the machine, by drawing the surface portion from two pposite sides only to the under side.

13. in a douglrforming machine the com- T10 bination of mechanism for forming a lump of dough into an approximately spherical loaf by stretching and drawing the surface portion from more than two sides to the under side, and means for stopping theoperation of part 1 5 of said mechanism to draw the surface portion of the spherical loaf from two sides only to the under side thereby elongating the leaf.

14. In a machine for forming a loaf from a lump of dough, substantially as described, the I 20 combination of a compartment having porous walls and carrying receptacles for flour or the like, a pair of cooperating rollers presenting friction-surfaces forming the base for the compartment, means operating to rotate said roll- I 2 5 ers in the direction toward one side of the lump, and means for producing impacts between the walls and opposite ends of the lump, substantially is and for the purpose side of'seld roller, and atraveling loef roll set 01mm.

15. 111 a machine for forming a loaf frame lump of dough subsumtmlly as (lesenbeu, me

5 combination of a pair of coeperzmng rollers presenting friction-surfaces forming a, bezurfor t e lumg, and holding it against 5mm ing, in 1' operating to rotate ,mhkl rollers in the clispetlon beware l one :sille'el the lump,

TO traveling discharge-belt extending from one ing belt above the discharge-belt and at an angle thereto to present a raduallpdeceeas space between the belts the belts ;;"0Vi11g at different speeds, substantially aezmil fer purpose set forth. GHEZISTEAN F In presence of Yl ALTER N. 'INBEBG, 

